Dump-car.



F. SEABERG.

DUMP GAR.

APPLICATION FILED JUNE 7, 1909.

1,050,240, Patented Jan. 14, 1913.

6 SHEETS-SHEET l.

JJ6 Sf I Aryan/0r. 1

F. SE ABERG.

DUMP OAR.

APPLICATION FILED JUNE 7 1909.

6 SHEETS-SHEET 2.

Patented Jan. 14, 1913.

F. SBABERG.

DUMP GAR.

.APPLIOATION FILED JUNE 7, 1909.

Patented Jan. 14, 1913.

6 SHEETS-SHEET s.

F. SEABERG.

DUMP GAR. APPLICATION FILED JUNE 7, 1909. 1,050,240, Patented Jan.14,1913.

6 SHEETSSHBET 4. a? 4.

RSEABERG,

DUMP OAR.

APPLIGATION FILED JUNE 7, 1909.

Patented Jan. 14, 1913.

6 SHEETSSHEET 5.

n l'7hexesi I. 'SEABERG.

DUMP GAR.

APPLIOATION FILED JUNE 7, 1909.

Patented Jam 14,1913.

6 SHEETS-SHEET 6.

mf/reasesx UNITED STATES PATENT ormon.

FREDERICKSEABERG, OF CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS,TO NATIONAL DUMP CAR COMPANY, OF CHICAGO, ILLINOIS, A CORIOEATION 0FMAINE.

pour-can.

Specification of itetters Patent. Patented Jan. 14, 1913.

Application filed June 7, 1909. Serial m. 600,836.

To aw 'wlwm'z't may 00ncem:

may be raised and lowered upon theopposite side'as a center of movement.

In the embodiment of my invention illus-i tratedin the drawings'anddescribed below,

the actuating mechanism for the door, or

movable floor sections, comprises rails adjacent the end of the dooropening and slop.- ing downwardly toward the center thereof, togetherwith reciprocating shafts supported upon 5 id rails and in turnsupporting the door, hese shafts being reciprocated by chains andwinding shafts.- It will be obvious, however, that the broad principleof my invention may be applied in connection with other forms ofmechanism for raising,

. lowering and supporting the opposite edges of thecmovable floorsections or door. In the more specific aspect of my invention, however,I consider the operating mechanismillustrated and descr'bed as welladapted for the purpose intend d.

In the drawingsFigui-e 1 is a side view of a car einbodyingmy invention.Fig. 2 is a plan view. Fig. 3 is an end view. Fig. 4 isacentraltransver'se section. Fig. 5.is a fragmentary view in transversesection corresponding to part of Fig. 4.. Fig. 8 is a fragmentary viewin longitudinal section showing the door open. Fig. 7 is a detail viewof part of the supporting rail and operating mechanism. Fig. 8 is' afragmentary side view of the central part of the car showing the doorclosed. Fig. 9 is a fragmentary view in longitudinal sect-ion 'throughthe door and part of the sloping end wall. Fig. 10 is a fragmentary viewof the door in open position, the illustration being confined totheelevated side of the door whiehacts as 'a center of movement whilethe opposite side is being lowered.

While'my invention may be employed in various connect-ions, it isespecially adapted for use-in connectionwith cars. of the typeillustrated, thesame being commonly used for transporting ore and" likematerial.

The car' illustrated'comprises a floor having end sections lslopingdownwardly toward the centerof the car and vertical-side walls2bet-ween which a dooropening is framed at thecenter of the car. Sidewall sections 3'1ncl1ne1-nwardly from the vertical side walls 2adJacenttheir lower edges, thus restricting to "some extent thedischarge opening, and in connection with the lower part of the sldewalls 2"form'ing a housing for the operating winding shafts 4. The

winding shafts 4 are supported in bearing plates 5 which extend betweenthe lower part of the .vertical side wallsand the inwardly inclined sidewall sections '3. Angle irons 6 are secured to the lower edges of thevertical side walls and plates 7- extend between and, are secured to thevertical side walls and Xinwardly inclining sections -3. The bearing,plates 5 are secured by' means of angles 8 which are riveted thereto andto the plates 7 It is obvious, however, that any suitable means may beadopted for supportmg the winding shafts. Preferably, the

lower edges of the inclinedends 1 and of the inwardly inclining sidewall sections 3 are bent downwardly to a vertical position at theirlower edges to coact with the movable floor section ordoor 9.

Extendingacross the car just outside of the ends of the central openingare rails 10 secured at their ends to the bearing plates 5 and angles 8,and inclining downwardly to the longitudinal center of the, car. Theupper surfaces of the rails 10 are formed with short horizontal sections11 adjacent their ends. Shafts 12 rest upon the rails 10 and support thedoor 9. Winding chains 13 are secured at their ends to the reciproeatingshafts 12 and winding shafts 4, respectively, and through the rotationof the winding shafts 4 the shafts 12 may be drawn upward to theposition illustrated in Fig. 4, in which position the shafts 12 restupon the horizontal sections 11 of the rails 10. In this position theweight imposed upon the door 9 has no tendency to cause the shafts 12 totravel downward upon the rails 10, and hence in this position thewinding chains 13 are relieved of all strain.

The doors 9 comprise an upper plate 14 reinforced by transverse Z-bars15 and by a longitudinal plate and I-beam 16 and 17, respectively,located at the center of the door and secured to said Z-bars.vDownwardly projecting bearing plates 18 are secured to' the Z-bars 15adjacent their ends, said projections 18 being rounded upon their innersurfaces 19 to conform to the curvature 'of the shafts 12 and when saidshafts 12 are raised to the position shown in Fig. 4 the bearing plates18 rest outside of and engage said shafts.

When either edge of the door is lowered by permitting. the shaft 12 totravel down the rail 10 to the center of the car the projections 18 atthe opposite edge of the door will remain in engagement with the shaft12 atthat edge thus forming a hinge connection about which the door mayopen, as illustrated in Fig. 10. The action of the door when lowered ateither side is illustrated in dotted lines in Fig. 4. ltn order to startthe shaft 12 upon its downward movement on the raillt) came 19 aresecured to the shafts l. Upon reference to Fig. 4, it will be obviousthat when either shaft 4 is rotated in direction to unwind its chainsthe cam 19 will contact with the corresponding shaft 12 and forciblymove it from the hori zontal part 11 of the rail 10, after which theweight of the door and superimposed load will carry the shaft 12downward along the rail 10, thus unwinding the chain from the shaft 4.The chains 13 may be attached to the Winding shafts and reciprocatingshafts by any suitable means. in the pres ent instance I have shown thechains attached to lI-bolts 20 extending through said shafts. 4

For the purpose of operating the winding shaft 4 any suitable mechanismmay be employed. ltn the present instance I have shown levers 21 pivotedupon the winding shafts and carrying reversible pawls 22 which coactwith star wheels 23 secured to the shafts 4:. In order to preventreverse rotation of the winding shafts when the reciprocating shafts arebeing drawn upwardly to close the doors, I provide-detents '24; ooactingwith pinions 25 secured to the shafts 4..

V The underframe of the car illustrated comprises center sills or draftsills 26 en: tending inwardly from the end sills 27 to the central dooropening, the load being carried from the center part of the car to theends by the plate sides 2. The sides 2 may be reinforced by channels andangles needaao 27 and 28, and the ends of the car are sup ported bystruts 29 extending upwardly from the angles 6 to the upper ends of theinclined ends 1. Preferably the shafts 4 are provided with spiralsheaves 30 upon which the chains13 wind.

From the foregoing description it will be apparent that I haveprovided acar having a dump door, either edge of which in connection with thecoacting parts may act as a hinge while the opposite edge is beingraised and lowered, the connection of the opposite edges of the doorwith the operating mechanism and car structure being such as to permitmovement about either edge as a center. By means of this constructionthe contents of the car may be dumped at either side without theemployment 0 a plurality of doors,-and without raising either edgeof thedoor to accomplish the desired object.

if would have it understood that I do not desire to limit" myself totheprecise con struction of partsshown in the drawings and hereindescribed, as various modificationsi or alterations may be made withoutdeparting from my original invention 'as defined in the appended claims.

I claim:

1. In a car, a movable floor section, and reciprocating shafts forraising and lowering said floor section at either side.

'2. in a car, an unattached floor section, reciprocating shafts forsupporting opposite sides of said 'tioor sectlon, saidshafts being alsoadapted for raising and lowering said opposite sides.

3. In a car, a floor provided with an opening, a floor section normallyclosing said opening, and reciprocating shafts for raising and loweringeither side of said section.

4:. In a car, a door, and reciprocating shafts for operating said dooruponeither of two opposite edges as the center of movement.

5. In a car, a floor provided with a door opening, a door normallyclosing said opening, reciprocating shafts supporting opposite sides ofsaid door, and means for raising and lowering either of .said shafts toraise or lower either edge of said door upon the other edge as a centerof movement.

6. In a car, a floor provided with an opening extending substantiallyfrom side to side of the car, a floor section normally closing saidopening, and reciprocating shafts for raising and lowering either sideof said section to cause the same to incline toward and dum the contentsof the car at either side of t e car.

'Z. In a car, end floor sections inclining downwardly from theendstoward the center of the car, a normally horizontal central doorsection between said end sections, and reciprocating shafts for raisingand lowering either side of said central section to ter of the car, sidewalls having an in-.

wardly sloping part adjacent their lower edges and between said endfloorsections, "a horizontal central floor sectlon normally closing theopening between said end floor sections andside walls, reciprocatingshafts for ,supporting said floor section, oneat either side, andoperating mechanism for raising and lowerin either of said shafts,

said' ope-rating mec anism comprising a winding shaft mounted beneathsaid inwardly sloping part of said side walls.

9. In a car, a floor having-a door opening, rails adjacent the ends ofsaid opening, and inclining downwardly from the sides toward the centerthereof, reciprocating shafts mounted on said rails, a movable floor section resting on said shafts, and means for reciprocating said shafts onsaid rails.

10.. In a car, a floor having a door opening, rails adjacent the ends ofsaid opening and inclining downwardly from the sides toward the centerthereof, a movable floor section, downwardly extending projections uponsaid movable floor section, reciprocating shafts mounted on said rails,said shafts when raised engaging said projections, and meansfor raisingand lowering saidshafts.

11. In a car, a floor having a door opening, rails adjacent the ends ofsaid opening and inclining downwardly from the sides toward the centerthereof, winding shafts adjacent the upper ends of said rails, recip-'rocating'shafts mounted on said rails, chains secured to said windingshafts and reciprocating shafts, means for rotating said winding shafts,and a movable floor sectionor door resting on said reciprocating shafts.

12. In a car, a floor having a door opening, rails adjacent the ends ofsaid opening and inclining downwardly from the sides toward the centerthereof, winding shafts adjacent the upper ends of said rails,reciprocating shafts mounted on said rails, chains secured to saidwinding shafts and reciprocating shafts, means for rotating said windingshafts, and a movable floor section or door resting on saidreciprocating shafts, said movable floor section or door havingdownwardly extending projections adapted to engage said reciprocatingshafts.

13. In a car, inclined end floor sections,

vertical side walls, inwardly inclining side' wall sections extendingfrom the lower part of said side walls, supports extending between andsecured to the lower parts of said vertical side walls and said inwardlyinclining side wall sections, winding shafts mounted in said supports, amovable fioor section adapted to close the space between said end floorsections and inwardlyinclin- I ing side wall sections, rails adjacentthe ends of said space and inclining downwardly from the sides towardthe center thereof, reciprocating shafts mounted on said supports, andchains secured to said winding shafts and reciprocating shafts.

14. In a car, a floor having a door open-. ing, inclined supportingrails adjacent the ends of said opening, each of said rails having ahorizontal part at its upper end, reciprocating shafts mounted on saidrails, winding shafts, chains connecting said winding and reciprocatingshafts, and cams secured to said winding shafts and adapted to contactwith said reciprocating shafts when the latter are upon the horizontalparts of said'rails.

15. In a car, a winding shaft, a reciprocating shaft, a movable floorsection oper-- ated thereby, a chain connecting said shafts, and a camupon said winding shaft adapted to actuate said reciprocating shaft in adirection opposite to the movenient' communicated thereto by said chain.

16. In a car, a floor having a door opening, rails adjacent the ends ofsaid opening and inclining downwardly from the sides toward the centerthereof, a movable floor section, downwardly extending projections uponsaid movable floor section, reciprocating shafts mounted on said railsundersaid floor section, and means for raising and lowering said shafts.

17 In a car, a floor having an opening, a floor section normally closingsaid opening,- reciprocating shafts for supporting opposite edges ofsaid section, an operating shaft for moving each of said shafts, meanson said operatin shafts for displacing said reciprocating s afts fromtheir normal ositions, and means on said operating s afts for replacingthem in their normal positions.

18. In a car, a floor having an opening, a floor section normallyclosing said opening, separate movable means for supporting oppositeedges of said section, means for supporting each of said movable meansin its normal position and guiding it to a lower position, and meansadapted to displace said movable means from its normal position and toreplace it therein.

19. In a car, a floor having an opening, a floor section normallyclosing said opening, separate movable means for supporting oppositeedges of said section, and for serving as hinges for said section ateither edge when the opposite edge is lowered, means for displacingeither of said movable means from its normal position and for replacingit therein, and rails adapted to support said movable means in itsnormal position and to guide it to a lower position. i

20. In a car, a floor having an opening, a floor section normallyclosing said opening, movable means for supporting opposite 4, toeomoedges of said section, and "for sewing 211s supporting positions, aiidchains adapted to 10.

hinges toinsaid section at either edge When Wind on said shafts forreplacing them in the opposite edge is lowered, mils adapted theirsupporting positions.

to support said movable means in their sup- In testimony whereof, I havesubscribed porting positions Under the edges of the secmy name.

tion and to guide said means to a, lower FREDERICK SEABERG. position,operating shafts for said movable Witnesses:

means, cams on saidshafts for dis- W. A. SCOTT,

piecing said movable means from their HENRY A. PARKS.

